CN102602860A - Lifting control system of car lifting jack - Google Patents
Lifting control system of car lifting jack Download PDFInfo
- Publication number
- CN102602860A CN102602860A CN2011104270951A CN201110427095A CN102602860A CN 102602860 A CN102602860 A CN 102602860A CN 2011104270951 A CN2011104270951 A CN 2011104270951A CN 201110427095 A CN201110427095 A CN 201110427095A CN 102602860 A CN102602860 A CN 102602860A
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- China
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- lifting
- contactless switch
- frequency converter
- control system
- motor
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Abstract
The invention relates to a lifting control system of a car lifting jack, which is used for controlling the on and off between a lifting motor M and a power line. The control system comprises a PLC (Programmable Logic Controller), a frequency converter A7, lifting contactors KMU2 and KMD2 and control mode conversion contactors KM70 and KM71, wherein the frequency converter A7 and the control mode conversion contactor KM70 are connected in series and then connected between the lifting motor M and the power line, the lifting contactors KMU2 and KMD2 are connected in parallel, are connected with the control mode conversion contactor KM71 in series and then are connected at the two ends of the frequency converter A7 and the control mode conversion contactor KM70, the lifting contactors KMU2 and KMD2 are interlocked electrically with each other, and the control mode conversion contactors KM70 and the KM71 are interlocked electrically. According to the lifting control system of the car lifting jack, the starting current of the system can be lowered as far as possible, the mechanical impact in starting can be reduced, the control precision of the system is improved, the fault frequency converter can be shielded rapidly, the reliability of the system can be improved greatly, and the car lifting operation can be guaranteed to be performed smoothly.
Description
Technical field
The present invention relates to a kind of car lifting J-Horner lift control system, the control system that particularly a kind of frequency converter and contactless switch are compatible.
Background technology
Motor train unit are the specialized equipment of the whole un-wheeling repair operation of motor train unit of 8 or 16 car marshallings with the ground pit type car lifting J-Horner; In order to improve the control accuracy of system; Adopted the mode of PLC control frequency converter infinite speed variation to carry out synchro control; Need use 48 or 96 frequency converters and work simultaneously, and a large amount of frequency converter is worked the reliability of the fault rate that increases system greatly, reduction system simultaneously, influences the unwheeling operation.The now general PLC direct control contactless switch that adopts, contactless switch control that motor goes up and down and the deviation adjustment again.Owing to adopt the contactor control motor, the system start-up electric current is big, the physical shock when starting is big, height tolerance is bigger.Perhaps adopt PLC control frequency converter, frequency converter controls that motor goes up and down and the deviation adjustment again.Owing to adopted 48 or 96 frequency converters to work simultaneously, system failure rate significantly increases, maintenance difficulties is big, reliability is relatively poor, influence the unwheeling operation.
Summary of the invention
The objective of the invention is to the shortcoming to prior art, the physical shock big, when starting of car lifting J-Horner system start-up electric current is big, fault rate is higher, maintenance difficulties is big, poor reliability, influences problems such as unwheeling operation in order to solve.The present invention adopts the frequency converter of PLC control and the compatible motor of contactor control mode to go up and down and the deviation control mode; Can change the mode of any multiple electric motors through touch-screen and PLC at any time; Improve the reliability of system greatly, ensured carrying out smoothly of unwheeling operation.
Technical scheme of the present invention is: a kind of car lifting J-Horner lift control system; Be used to control the break-make that comprises between lifting motor M and the power lead; It is characterized in that: the frequency converter A between lifting motor M and power lead 7, up-down contactless switch KMU2, KMD2, master mode conversion contactless switch KM70, KM71 that described control system comprises the PLC controller, controlled by the PLC controller; Wherein, Frequency converter A 7, master mode conversion contactless switch KM70 series connection back are inserted between lifting motor M and the power lead; Up-down contactless switch KMU2, KMD2 parallel connection with and master mode conversion contactless switch KM71 be connected to the two ends that frequency converter A 7, master mode are changed contactless switch KM70 after be connected in series, described up-down contactless switch KMU2, KMD2 be electric interlocking each other, master mode is changed contactless switch KM70, KM71 electric interlocking each other.
Preferably: be provided with motor protective circuit breaker QM10 between described power lead and the lifting motor M.
Preferably: described lifting motor M is provided with the band-type brake of motor, and the band-type brake of motor is connected on the power lead through contactless switch KM19, and contactless switch KM19 is controlled by the PLC controller.
Preferably: be provided with circuit breaker Q 5 between described power lead and the contactless switch KM19.
Preferably: described PLC controller is connected with touch-screen.
Beneficial effect of the present invention is: adopt the Frequency Converter Control motor to go up and down under the present technique scheme normal circumstances and the deviation adjustment; When one or more frequency converter breaks down can not normally move the time, can its cooresponding motor be switched to that the contactor control mode is gone up and down and the deviation adjustment through touch-screen and PLC.Not only can reduce the starting current of system, the physical shock when reducing to start so as far as possible, improve the control accuracy of system, can also mask the fault frequency converter fast, improve the reliability of system greatly, ensure carrying out smoothly of unwheeling operation.
Description of drawings
Fig. 1 is a scheme drawing of the present invention
The specific embodiment
Below in conjunction with the description of drawings specific embodiment of the present invention:
As shown in Figure 1, A7 is a frequency converter, and KMU2 and KMD2 are up-down contactless switch, electric interlocking each other; KM70 and KM71 are master mode conversion contactless switch, electric interlocking each other.
When frequency converter A 7 is in proper working order, select the KM70 adhesive through touch-screen and PLC, KM71 breaks off, and isolates KMU2 and KMD2 up-down contactless switch, and motor M 1 is gone up and down by frequency converter A 7 controls and deviation is adjusted;
When frequency converter A 7 faults, select KM70 to break off through touch-screen and PLC, the isolated fault frequency converter, motor M 1 is gone up and down and the deviation adjustment by KMU2, KMD2 and KM71 control.
Up-down contactless switch KMU2, KMD2, its upper end also is attached to the lower port of motor protective circuit breaker QM10, and its lower end is connected to the upper end of KM71 after then anti-phase connects, and the lower end of KM71 and KM70 also is attached to motor M 1.
The power input of frequency converter A 7 is with the upper end of KMU2 and KMD2 and be connected to the lower port of motor protective circuit breaker QM10, and the mouth of frequency converter A 7 is connected to the upper end of KM70, and other I/O point of frequency converter A 7 is connected on the corresponding I/O point of PLC.
The band-type brake of KM19 control motor, the control coil of each contactless switch is by hardware logic and PLC control.
Claims (5)
1. car lifting J-Horner lift control system; Be used to control the break-make that comprises between lifting motor M and the power lead; It is characterized in that: the frequency converter A between lifting motor M and power lead 7, up-down contactless switch KMU2, KMD2, master mode conversion contactless switch KM70, KM71 that described control system comprises the PLC controller, controlled by the PLC controller; Wherein, Frequency converter A 7, master mode conversion contactless switch KM70 series connection back are inserted between lifting motor M and the power lead; Up-down contactless switch KMU2, KMD2 parallel connection with and master mode conversion contactless switch KM71 be connected to the two ends that frequency converter A 7, master mode are changed contactless switch KM70 after be connected in series, described up-down contactless switch KMU2, KMD2 be electric interlocking each other, master mode is changed contactless switch KM70, KM71 electric interlocking each other.
2. car lifting J-Horner lift control system as claimed in claim 1 is characterized in that: be provided with motor protective circuit breaker QM10 between described power lead and the lifting motor M.
3. car lifting J-Horner lift control system as claimed in claim 1 is characterized in that: described lifting motor M is provided with the band-type brake of motor, and the band-type brake of motor is connected on the power lead through contactless switch KM19, and contactless switch KM19 is controlled by the PLC controller.
4. car lifting J-Horner lift control system as claimed in claim 3 is characterized in that: be provided with circuit breaker Q 5 between described power lead and the contactless switch KM19.
5. like any described car lifting J-Horner lift control system of claim 1-4, it is characterized in that: described PLC controller is connected with touch-screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104270951A CN102602860A (en) | 2011-12-20 | 2011-12-20 | Lifting control system of car lifting jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104270951A CN102602860A (en) | 2011-12-20 | 2011-12-20 | Lifting control system of car lifting jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102602860A true CN102602860A (en) | 2012-07-25 |
Family
ID=46520738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104270951A Pending CN102602860A (en) | 2011-12-20 | 2011-12-20 | Lifting control system of car lifting jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102602860A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106787973A (en) * | 2016-12-12 | 2017-05-31 | 北京金风科创风电设备有限公司 | Drive control device and method for yaw motor of wind generating set |
| CN110018663A (en) * | 2019-03-07 | 2019-07-16 | 唐山百川智能机器股份有限公司 | Failure to safety Fail-Safe pit vehicle lifting jack control system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06508500A (en) * | 1992-04-03 | 1994-09-22 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | Power conversion circuit with intermediate circuit monitor |
| CN101164855A (en) * | 2006-10-20 | 2008-04-23 | 王秋楠 | Device for escaping elevator abnormal state |
| CN201190075Y (en) * | 2007-10-31 | 2009-02-04 | 苏州新达电扶梯部件有限公司 | Drive control system of escalator or automatic footway |
| CN201750385U (en) * | 2010-08-11 | 2011-02-16 | 北京铁道工程机电技术研究所 | Motor train unit pit vehicle lifting jack multi-machine group-control synchronous control device |
| CN102035400A (en) * | 2010-12-20 | 2011-04-27 | 青岛四方车辆研究所有限公司 | Ground power supply system of motor train unit |
-
2011
- 2011-12-20 CN CN2011104270951A patent/CN102602860A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06508500A (en) * | 1992-04-03 | 1994-09-22 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | Power conversion circuit with intermediate circuit monitor |
| CN101164855A (en) * | 2006-10-20 | 2008-04-23 | 王秋楠 | Device for escaping elevator abnormal state |
| CN201190075Y (en) * | 2007-10-31 | 2009-02-04 | 苏州新达电扶梯部件有限公司 | Drive control system of escalator or automatic footway |
| CN201750385U (en) * | 2010-08-11 | 2011-02-16 | 北京铁道工程机电技术研究所 | Motor train unit pit vehicle lifting jack multi-machine group-control synchronous control device |
| CN102035400A (en) * | 2010-12-20 | 2011-04-27 | 青岛四方车辆研究所有限公司 | Ground power supply system of motor train unit |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106787973A (en) * | 2016-12-12 | 2017-05-31 | 北京金风科创风电设备有限公司 | Drive control device and method for yaw motor of wind generating set |
| EP3361622A4 (en) * | 2016-12-12 | 2019-05-15 | Beijing Goldwind Science & Creation Windpower Equipment Co., Ltd. | Driving control device and method for yaw electrmotor of wind power generation set |
| CN106787973B (en) * | 2016-12-12 | 2019-08-23 | 北京金风科创风电设备有限公司 | Drive control device and method for yaw motor of wind generating set |
| US10998845B2 (en) | 2016-12-12 | 2021-05-04 | Beijing Goldwind Science & Creation Windpower Equipment Co., Ltd. | Drive control apparatus and method for yaw motor of wind turbine |
| CN110018663A (en) * | 2019-03-07 | 2019-07-16 | 唐山百川智能机器股份有限公司 | Failure to safety Fail-Safe pit vehicle lifting jack control system |
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Application publication date: 20120725 |